Thread-cutting attachment for spools.



"J, 500,005.3.' THREAD V{.'UTTlNl ATTACHMENT FOR SPOOLS.

(Appumign med Ngv.' 2s, i900.)

(No Model.)

Cl El] C" Witnesses UNITED STATES PATENT Fries.

THREAD-CUTTING ATTACHMENT FOR SPOOLS.

SPECIFICATION forming part of Letters Patent N o. 690,400, dated January7, 1902.

Application filed November 23,1900. Serial No. 37,439. (Nomodel.)

To a/ZZ whom it may concern:

Be it known that I, JOHN FERDINAND CORDES, a citizen of the UnitedStates, and a v tachment to spools, whereby the thread after beingunwound from the spool may be cut off at any required length; and theobject of my invention is to so cheapen the construction of the devicethat it may be brought into extensive use and to provide such devicewith a knife secured in a novel manner to the shell Without soldering orbeing held in place by separate fastening devices, which are notdesirable, as will hereinafter appear in the accompanying detaileddescriptionof its construction and claims, and with reference to theaccompanying drawings, illustrating my invention, wherein- Figure l is aperspective view of a spool of thread,showing my improved attachmentconnected thereto; Fig. 2, a perspective view of the attachment removedfrom the spool; Fig. 3, a vertical enlarged section of the attachment inthe same plane with that of the knife; Fig. 4, acorrespondiugly-enlarged side elevation of the knife detached, and Fig.5 a correspondingly-enlarged side elevation of a plate of sheet metalstamped out toform a blank for the barrel of the attachment.

The thread-cutting attachment consists of a vbarrel A, secured in asuitable manner at its upper end to a cap B, which latter extendssufticiently beyond the diameter of the barrel A to completely protect aknife-blade C, which passes diametrically through said barrel, at theupper end thereof, and projects beyond the same and is provided at itsouter ends with sharpened edges c c2, against which the thread may bewrapped and drawn to sever it any required distance from the endthereof.

The barrel A of the attachment also has a dished disk D, with a centralhole therein through which the barrel passes and is made to lit tightlythereon and is preferably secured Yone-third the widt h toward themiddle thereof,

and the ends of the said blank have vertical portions aid4 cutawaytherefrom respectively at the upper and at the lower ends of said blankand at corresponding distances toward the middle thereof and opposite tothe said slits a a2', thus providing a blank which when made cylindricalwill provide a closed slot c3 upon one side and a split slot c4diarnetrically opposite thereto and upon the open side of the barrel,thus to receive the knife C freely through the closed slot and embraceand bind the said knife upon the'opeu side of the said barrel when thedisk D is forced thereon, and thus securely clamp the knife and hold itin a fixed position below the cap B without the employment of rivets orpins and without the use of solder, which would he slow to apply, andthe heat employed thereby would draw the temper of the knife. The knifewhen thus held may be easily removed for regrinding it by withdrawingthe barrel from the hole in the disk. The lower slits a2 01,4 a5 CLGwill give freedom to the lower end of the barrel to admit of its beingforced into the hole fofa spool F and expanding therein sufficiently totightly hold the attachment to the spool, and when the lat-ter is pushedtherein until the disk D rests upon the top of the spool the end of thethread after being cut may be drawn between the disk and the end of thespool and be securely held thereby.

The cap B may have a central hole therein (not shown) to allow thespindle of a spoolholder to pass completely through the attachment andmay consist of a solid' ring driven onto the split upper end of thebarrel and fitting tightly thereon and will be thus lheld without theuse of solder.

The several parts composing the attachment may thus be stamped out fromsheet metal very cheaply and assembled and secured together so rapidlythat the cost of the same is so little that the name of themanufacturers may be stamped in a suitable manner upon them, and theymay be given away for advertising purposes.

The thread is easily and quickly severed the thread loosely a sufficientnumber of times around the upper end or neck of the barrel, between thecap and the disk, and against the ends of the knife until a sufficientlength of thread is left at the end thereof, and the thread is thendrawn tightly against the knife and severed.

I claim as my invention and desire to secure by Letters Patent- 1. Athread-cutting attachment for spools comprising a barrel, adapted to itinto a spool-hole, a cap at the upper end thereof, a knife secureddiametrically upon said barrel to project therefrom at its ends, and adisk JOHN FERDINAND CORDES.

Witnesses:

C. H. SOHAFER, WM. H. ROSEGRANS.

